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This article is devoted to the conceptual development of the transition from drill and blast excavation to a non-blasting method for the preparation of hard rock before excavation at construction material deposits. The scientifi c and technical literature on the problems in the blasting of hard rock in preparation for excavation is analysed. A classifi cation of mining equipment for the non-blasting development of a rock mass for excavation has been developed, taking into account the nature of the operation of mining equipment. The concept of the transition from drill and blast excavation to nonblasting methods in the preparation of mined rock in non-metallic material quarries is presented. The research results of the parameter determination of the elements of the system for the development of non-blasting equipment at a limestone quarry are presented. The economic effi ciency of a hydraulic excavator with a ripper tooth for developing limestone with a strength of up to 30 MPa is established.

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A systematic approach to environmental monitoring of small water systems and its optimization is proposed. For simplify the storage of large amounts of information, accelerate the obtaining of preliminary conclusions of water resources condition, predict the dynamics of both individual indicators and their system attributes, and develop a user-friendly interface, which is tied to the area. To carry out the research, samples of water were taken near the corresponding sections of industrial enterprises of Korosten region, as well as discharges of a storm water system. Based on the standard approach, with the help of physicochemical methods of analysis practically all the hydrochemical parameters in the studied water body were determined. The obtained results were compared with the regulatory guidelines. For systematization and maintenance of environmental monitoring, a software package has been developed, which has been tested on the results of the instrumental laboratory analysis of surface water quality of the river Uzh. The software package is developed to establish local sources of pollution, monitor potentially dangerous man-made objects, and better manage of water resources. A user-friendly interface has been developed, which is tied to the area and is easily adapted to other monitoring objects. Thanks to the developed software package, the implementation of an integrated approach to the collection and analysis of monitoring data is carried out quickly, efficiently and conveniently. The developed approach allows easy adaptation to the objects of the research and does not require significant capital investment.

Superthin layers in ZnO and ZnO–CdO systems, which are intended for the use as transparent electrodes of modern optoelectronic devices, were synthesized by modified sol-gel method. The ranges of parameters of the technological process were established to obtain high-quality layers of material on glass substrates. Surface morphology depending on the synthesis conditions was studied by scanning electron microscopy. SEM images of the surface served as a basis for the multifractal analysis of the surface areas and volumes of nanoforms that are formed on the surface of the obtained layers. The dependences of the multifractal parameters of the surface nanoforms characterizing the surface state were determined as a function of the temperature of the final annealing of the layers. The relationships between Rainier numbers and fractal ordering parameters describing the surface geometry of the layers with the temperatures of the final annealing were established. The numerical values of the fractal characteristics of the obtained surface were used to estimate the influence of the fractal surface geometry on the value of the molar surface energy of the layers.